CN107833824B - Electrical connection structure of quadrupole mass analyzer - Google Patents
Electrical connection structure of quadrupole mass analyzer Download PDFInfo
- Publication number
- CN107833824B CN107833824B CN201711112488.7A CN201711112488A CN107833824B CN 107833824 B CN107833824 B CN 107833824B CN 201711112488 A CN201711112488 A CN 201711112488A CN 107833824 B CN107833824 B CN 107833824B
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- quadrupole
- rods
- rod
- metal conductive
- mass analyzer
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- 239000002184 metal Substances 0.000 claims abstract description 57
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims 7
- 238000010168 coupling process Methods 0.000 claims 7
- 238000005859 coupling reaction Methods 0.000 claims 7
- 238000007789 sealing Methods 0.000 abstract description 8
- 239000000306 component Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 230000005684 electric field Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 238000009960 carding Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/26—Mass spectrometers or separator tubes
- H01J49/34—Dynamic spectrometers
- H01J49/42—Stability-of-path spectrometers, e.g. monopole, quadrupole, multipole, farvitrons
- H01J49/4205—Device types
- H01J49/422—Two-dimensional RF ion traps
- H01J49/4225—Multipole linear ion traps, e.g. quadrupoles, hexapoles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
The invention provides an electrical connection structure of a quadrupole mass analyzer, which comprises the following components: the invention relates to a mass analyzer, which is characterized in that the mass analyzer is provided with a mass analyzer shielding cover inside, and comprises a quadrupole rod assembly of a pre-quadrupole rod and a main quadrupole rod, a connecting structure for connecting the main quadrupole rod, a metal conductive connecting rod for conducting an electric signal to the quadrupole rod assembly and a high-vacuum sealing high-voltage connector for connecting the metal conductive connecting rod with an external power supply.
Description
Technical Field
The invention relates to the technical field of mass spectrometers, in particular to an electrical connection structure of a quadrupole mass analyzer.
Background
Quadrupole mass analyzers, that is, quadrupole rods, are one of the core components of mass spectrometers, and are generally composed of four metal rods and two ceramic supports, and the metal rods can be generally round or hyperboloid in shape. The two opposite metal rods are one group, two groups are provided, and opposite voltage radio frequency voltages are applied to the two groups of metal rods. The two sets of radio frequency voltages can be respectively expressed as U+u cos ωt and- (U+u cos ωt), wherein U is a direct current voltage component, U is a radio frequency voltage component, and ions with various mass numbers can sequentially pass through a quadrupole field mass analyzer to reach a detector to be detected through electric field scanning (continuously changing electric field parameters). Thus, the purpose of mass separation is achieved. From the electric field parameters, the mass number of the resonating ions can be determined.
The quadrupole rods are arranged in a vacuum cavity of the mass spectrometer and are connected with an external radio-frequency power supply through a vacuum-sealed high-voltage connector. The maximum radio frequency voltage component u generated by the radio frequency power supply is about 6000Vpp, and the frequency is 1.2MHz. The quadrupole is a load of the radio frequency power supply, belongs to capacitive load, and resonates with a coil of the radio frequency power supply when the output voltage frequency is 1.2MHz, so that the output power of the radio frequency power supply can be minimized. The conventional wire connection mode of frequency is difficult to meet the voltage withstand requirement, stray capacitance is also introduced, and the output power of a radio frequency power supply is additionally increased. In addition, in the actual production process of the instrument, the value of the stray capacitance is uncertain due to different operation modes of workers, and a wider adjustment allowance is reserved when the radio frequency power supply is designed so as to adapt to different conditions, so that the stability of the power supply is reduced, the debugging workload of the power supply is increased, and the performance consistency among different instruments is reduced.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent.
Therefore, an object of the present invention is to provide an electrical connection structure of a quadrupole mass analyzer, which has a simple structure and a reasonable design, and can reduce installation and maintenance costs.
The quadrupole mass analyzer electrical connection structure according to the present invention comprises: the mass analyzer is provided with a mass analyzer shielding cover inside the mass analyzer, and comprises a quadrupole rod assembly of a pre-quadrupole rod and a main quadrupole rod, a connecting structure used for connecting the main quadrupole rod, a metal conductive connecting rod used for conducting an electric signal to the quadrupole rod assembly and a high-vacuum sealing high-voltage connector used for connecting the metal conductive connecting rod with an external power supply.
In addition, in the actual production process of the instrument, different operation modes of workers can lead to uncertain values of the stray capacitance, and wider adjustment allowance is reserved when the radio frequency power supply is designed so as to adapt to different conditions, thereby reducing the stability of the power supply, increasing the debugging workload of the power supply and reducing the performance consistency among different instruments; the four-pole mass analyzer electrical connection structure adopts a hard wire structure and a plug connection or press connection mode, so that the problems that the structure is disordered, the carding is difficult, the internal space cannot be utilized and the like caused by the original soft wire are avoided, and meanwhile, the plug connection mode or the press connection mode can avoid stray capacitance caused by welding and vacuum and detection errors caused by residual substances such as rosin and the like, so that the four-pole mass analyzer electrical connection structure has obvious advantages and advantages.
In addition, the electrical connection structure of the quadrupole mass analyzer according to the above embodiment of the invention may further have the following additional technical features:
further, the pre-quadrupole rod and the main quadrupole rod include a plug member provided on a rod constituting the quadrupole rod assembly, and the metal conductive connecting rod communicates with the quadrupole rod assembly through the plug member.
Further, the metal conductive connecting rods comprise pre-metal conductive connecting rods which are associated with the pre-quadrupole rods and main metal conductive connecting rods which are associated with the main quadrupole rods, the number of the pre-metal conductive connecting rods is two, the rods are respectively opposite to the pre-quadrupole rods, the number of the main metal conductive connecting rods is two, and the rods are respectively opposite to the main quadrupole rods.
Further, the connection structure further comprises a supporting component arranged outside the mass analyzer shielding case and used for supporting the pre-metal conductive connecting rod and the main metal conductive connecting rod, the supporting component is used for supporting the metal conductive connecting rod and is also provided with a functional component for insulating the metal conductive connecting rod from other parts, and in fact, electromagnetic interference possibly caused by the fact that flexible wires are adopted can be eliminated or reduced by adopting the straight metal conductive rod.
Further, a non-flexible wire is adopted between the metal conductive connecting rod and an external connector of the high-vacuum sealing high-voltage connector for being conducted with an external power supply or the quadrupole rod assembly.
Furthermore, the non-flexible wires are rigid wires or form a rigid wire structure with an elastic structure, such as a rigid wire with a bent three-dimensional or plane structure, so that the structure has a certain elasticity, and the structure can be more conveniently plugged and pulled out, and the installation is further convenient.
Further, in the connection structure, the metal conductive connecting rod is connected with an external connector of the high-vacuum sealing high-voltage connector for being conducted with an external power supply or with the quadrupole rod assembly by adopting a plug-in structure or a compression structure.
Further, the connecting structure further comprises lap joint parts which are used for connecting the quadrupolar rods of the quadrupolar rod assemblies in pairs and are insulated from other quadrupolar rod assemblies, and the adoption of the lap joint parts can further reduce the complexity of installation and improve the difficulty of installation.
Further, the lap joint member is a metal ring sheet having an opening, and a portion of the metal ring sheet overlapped with the four-pole bars facing each other is shaped to be fitted to the outer shape of the four-pole bar and insulated from the other four-pole bars.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic top view of an electrical connection structure of a quadrupole mass analyzer of the present invention;
FIG. 2 is a schematic view of a metal conductive connecting sheet according to the present invention;
FIG. 3 is a schematic diagram of the metal conductive tab and quadrupole rod combination of the present invention;
in the figure, 1 mass analyzer shield 2 metal conductive connecting sheet 3 mass analyzer
4, a metal conductive connecting rod 5 is used for sealing the high-pressure joint in a high-vacuum way.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The electrical connection structure of the quadrupole mass analyzer according to the present invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the quadrupole mass analyzer electrical connection structure according to the present invention comprises: the mass analyzer is provided with a mass analyzer shielding cover inside the mass analyzer, and comprises a quadrupole rod assembly of a pre-quadrupole rod and a main quadrupole rod, a connecting structure used for connecting the main quadrupole rod, a metal conductive connecting rod used for conducting an electric signal to the quadrupole rod assembly and a high-vacuum sealing high-voltage connector used for connecting the metal conductive connecting rod with an external power supply. In addition, in the actual production process of the instrument, different operation modes of workers can lead to uncertain values of the stray capacitance, and wider adjustment allowance is reserved when the radio frequency power supply is designed so as to adapt to different conditions, thereby reducing the stability of the power supply, increasing the debugging workload of the power supply and reducing the performance consistency among different instruments; the four-pole mass analyzer electrical connection structure adopts a hard wire structure and a plug connection or press connection mode, so that the problems that the structure is disordered, the carding is difficult, the internal space cannot be utilized and the like caused by the original soft wire are avoided, and meanwhile, the plug connection mode or the press connection mode can avoid stray capacitance caused by welding and vacuum and detection errors caused by residual substances such as rosin and the like, so that the four-pole mass analyzer electrical connection structure has obvious advantages and advantages.
In addition, the electrical connection structure of the quadrupole mass analyzer according to the above embodiment of the invention may further have the following additional technical features:
further, the pre-quadrupole rod and the main quadrupole rod include a plug member provided on a rod constituting the quadrupole rod assembly, and the metal conductive connecting rod communicates with the quadrupole rod assembly through the plug member.
Further, the metal conductive connecting rods comprise pre-metal conductive connecting rods which are associated with the pre-quadrupole rods and main metal conductive connecting rods which are associated with the main quadrupole rods, the number of the pre-metal conductive connecting rods is two, the rods are respectively opposite to the pre-quadrupole rods, the number of the main metal conductive connecting rods is two, and the rods are respectively opposite to the main quadrupole rods.
Further, the connection structure further comprises a supporting component arranged outside the mass analyzer shielding case and used for supporting the pre-metal conductive connecting rod and the main metal conductive connecting rod, the supporting component is used for supporting the metal conductive connecting rod and is also provided with a functional component for insulating the metal conductive connecting rod from other parts, and in fact, electromagnetic interference possibly caused by the fact that flexible wires are adopted can be eliminated or reduced by adopting the straight metal conductive rod.
Further, a non-flexible wire is adopted between the metal conductive connecting rod and an external connector of the high-vacuum sealing high-voltage connector for being conducted with an external power supply or the quadrupole rod assembly.
Furthermore, the non-flexible wires are rigid wires or form a rigid wire structure with an elastic structure, such as a rigid wire with a bent three-dimensional or plane structure, so that the structure has a certain elasticity, and the structure can be more conveniently plugged and pulled out, and the installation is further convenient.
Further, in the connection structure, the metal conductive connecting rod is connected with an external connector of the high-vacuum sealing high-voltage connector for being conducted with an external power supply or with the quadrupole rod assembly by adopting a plug-in structure or a compression structure.
Further, the connecting structure further comprises lap joint parts which are used for connecting the quadrupolar rods of the quadrupolar rod assemblies in pairs and are insulated from other quadrupolar rod assemblies, and the adoption of the lap joint parts can further reduce the complexity of installation and improve the difficulty of installation.
Further, the lap joint member is a metal ring sheet having an opening, and a portion of the metal ring sheet overlapped with the four-pole bars facing each other is shaped to be fitted to the outer shape of the four-pole bar and insulated from the other four-pole bars.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (7)
1. A quadrupole mass analyzer electrical connection structure, comprising: a mass analyzer, a mass analyzer shield housing mounting the mass analyzer inside itself, a quadrupole assembly comprising pre-quadrupoles and main quadrupoles, a coupling structure for connecting the main quadrupoles and a metal conductive coupling rod for conducting electrical signals to the quadrupole assembly, and a high vacuum sealed high voltage connector for coupling the metal conductive coupling rod with an external power source; the pre-quadrupole rod and the main quadrupole rod comprise plug parts arranged on rod pieces forming the quadrupole rod assembly, and the metal conductive connecting rod is communicated with the quadrupole rod assembly through the plug parts; the metal conductive connecting rods comprise pre-metal conductive connecting rods which are connected with the pre-quadrupole rods and main metal conductive connecting rods which are connected with the main quadrupole rods, the number of the pre-metal conductive connecting rods is two, the rods are respectively connected with the rods which are opposite to the pre-quadrupole rods, and the number of the main metal conductive connecting rods is two, and the rods which are respectively connected with the rods which are opposite to the main quadrupole rods.
2. The electrical connection structure of a quadrupole mass analyzer of claim 1, wherein the coupling structure further comprises a support member disposed outside the mass analyzer shield for supporting the pre-metal conductive coupling rod and the main metal conductive coupling rod.
3. The electrical connection of a quadrupole mass analyzer of claim 1, wherein a non-flexible wire is employed between the metallic conductive tie rod and the external connector of the high vacuum sealed high voltage connector for conducting to an external power source or to the quadrupole rod assembly.
4. A quadrupole mass analyser electrical connection according to claim 3, wherein the non-flexible wires are rigid wires.
5. The electrical connection structure of the quadrupole mass analyzer according to claim 1, wherein in the connection structure, the metal conductive connecting rod is connected with an external connector of the high-vacuum sealed high-voltage connector for being conducted with an external power supply or with the quadrupole rod assembly by adopting a plug-in structure or a press-connection structure.
6. The electrical connection of a quadrupole mass analyzer of claim 1, further comprising lap joint members for connecting the quadrupole rods of the quadrupole rod assembly in pairs opposite each other and insulated from the other quadrupole rod assemblies.
7. The mass analyser electrical connection of claim 6 wherein the lap joint members are metal sheets having openings, and lap parts of the metal sheets and the quadrupole rods facing each other are shaped to fit the outer shape of the quadrupole rods and to be insulated from the other quadrupole rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711112488.7A CN107833824B (en) | 2017-11-13 | 2017-11-13 | Electrical connection structure of quadrupole mass analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711112488.7A CN107833824B (en) | 2017-11-13 | 2017-11-13 | Electrical connection structure of quadrupole mass analyzer |
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| Publication Number | Publication Date |
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| CN107833824A CN107833824A (en) | 2018-03-23 |
| CN107833824B true CN107833824B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711112488.7A Active CN107833824B (en) | 2017-11-13 | 2017-11-13 | Electrical connection structure of quadrupole mass analyzer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114373670B (en) * | 2021-12-24 | 2024-03-22 | 天津国科医工科技发展有限公司 | Mass spectrometer high-voltage transmission structure and mass spectrometer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005259616A (en) * | 2004-03-15 | 2005-09-22 | Shimadzu Corp | Quadruplex pole mass spectrograph |
| CN102279236A (en) * | 2010-06-08 | 2011-12-14 | 江苏天瑞仪器股份有限公司 | Chromatograph mass spectrometer |
| CN102834897A (en) * | 2010-04-09 | 2012-12-19 | 株式会社岛津制作所 | Quadrupolar mass analysis device |
| CN104183454A (en) * | 2014-08-26 | 2014-12-03 | 昆山禾信质谱技术有限公司 | Proton transfer reaction mass spectrum ion transmission device |
| CN105679639A (en) * | 2016-03-30 | 2016-06-15 | 江苏天瑞仪器股份有限公司 | Nonlinear quadrupole prefilter |
| CN207719139U (en) * | 2017-11-13 | 2018-08-10 | 江苏天瑞仪器股份有限公司 | Four-electrode quality analyzer connecting structure for electrical equipment |
-
2017
- 2017-11-13 CN CN201711112488.7A patent/CN107833824B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005259616A (en) * | 2004-03-15 | 2005-09-22 | Shimadzu Corp | Quadruplex pole mass spectrograph |
| CN102834897A (en) * | 2010-04-09 | 2012-12-19 | 株式会社岛津制作所 | Quadrupolar mass analysis device |
| CN102279236A (en) * | 2010-06-08 | 2011-12-14 | 江苏天瑞仪器股份有限公司 | Chromatograph mass spectrometer |
| CN104183454A (en) * | 2014-08-26 | 2014-12-03 | 昆山禾信质谱技术有限公司 | Proton transfer reaction mass spectrum ion transmission device |
| CN105679639A (en) * | 2016-03-30 | 2016-06-15 | 江苏天瑞仪器股份有限公司 | Nonlinear quadrupole prefilter |
| CN207719139U (en) * | 2017-11-13 | 2018-08-10 | 江苏天瑞仪器股份有限公司 | Four-electrode quality analyzer connecting structure for electrical equipment |
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| CN107833824A (en) | 2018-03-23 |
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